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Dissertations / Theses on the topic 'Rotary Endodontic Files'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Tomsic, Albert L. "The effect of multiple usages of nickel-titanium rotary endodontic files on cutting efficiency." Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10032.

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Thesis (M.S.)--West Virginia University, 2009.<br>Title from document title page. Document formatted into pages; contains viii, 44 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 40-43).

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2

Burke, Thomas. "AN SEM INVESTIGATION INTO THE EFFECTS OF CLINICAL USE ON HEAT-TREATED NICKEL-TITANIUM ROTARY ENDODONTIC FILES." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1470239374.

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3

Smith, Michael Shane. "SODIUM HYPOCHLORITE'S EFFECT ON NICKEL-TITANIUM ROTARY INSTRUMENTS AND ITS EFFECT ON RESISTANCE TO FRACTURE." VCU Scholars Compass, 2007. http://scholarscompass.vcu.edu/etd/941.

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The purpose of this study was to examine the effect of partial and total immersion in sodium hypochlorite on nickel-titanium rotary files and to determine whether resistance to fracture was influenced by the immersion time. One hundred K3 and 100 ProFile® rotary files were either partially or totally immersed in 5.25% sodium hypochlorite for zero, one, five, thirty, or sixty minutes. After immersion, files were subjected to cyclic fatigue testing. Time to fracture was recorded and analyzed by a two-way ANOVA. Tukey's honest significant difference was used to identify any differences in im

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4

Almeida, Fabiano Costa 1969. "Analise de falhas de instrumentos endodonticos rotatorios de Ni-Ti em odontologia." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264928.

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Orientador: Itamar Ferreira<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-12T18:16:51Z (GMT). No. of bitstreams: 1 Almeida_FabianoCosta_M.pdf: 5847726 bytes, checksum: 145c2a03eac9f5421c57057a5a6f9cb6 (MD5) Previous issue date: 2008<br>Resumo: Os instrumentos endodônticos rotatórios de Ni-Ti (limas rotatórias) são utilizados para o preparo dos condutos radiculares e apresentam características de memória de forma, alta flexibilidade e geometria variável. Apesar dessas características, quando solicitados n

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Ventura, Breno Nappi. "Avaliação microtomográfica da modelagem de canais radiculares curvos preparados com sistemas automatizados." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/23/23156/tde-22082017-120000/.

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O preparo do canal radicular ideal relaciona-se ao processo de sanificação em conjunto com a modelagem que resulta em condições especificas para a obturação dos sistemas de canais radiculares. Com a evolução constante dos sistemas de preparo, a microtomografia computadorizada (micro-CT) se apresenta como método de pesquisa confiável que possibilita uma avaliação completa e detalhada do canal radicular. Para tanto, o objetivo deste estudo foi comparar a capacidade de modelagem do sistema ProTaper Gold (PTG) em relação ao ProTaper Next (PTN) com glide path realizado com lima K #15 ou sistema Pro

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6

Noya, Ares José Antonio. "Comparação de sistemas de instrumentação mecanizada em endodontia." Master's thesis, [s.n.], 2015. http://hdl.handle.net/10284/5144.

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Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Medicina Dentária<br>Com o aparecimento da liga de Níquel Titânio na Endodontia, foi inevitável a pesquisa de métodos mais rápidos e eficientes para a realização do tratamento endodôntico, tendo como consequência o surgimento de diversos sistemas de instrumentação mecanizada. De facto, estes foram idealizados com o intuito de melhorar, tanto em qualidade como em diminuição de tempo, os sistemas manuais. Esta revisão bibliográfica pretendeu comparar um si

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7

Suffridge, Calvin Buford. "Cleaning Efficiency of Nickel Titanium GT and .04 Rotary Files when used in a Torque Controlled Rotary Handpiece." VCU Scholars Compass, 2002. https://scholarscompass.vcu.edu/etd/5533.

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This study determined if the cleaning efficiency of NiTi rotary files in an endodontic electric handpiece using a no torque control setting was superior to that obtained when using the torque control feature. Fifty extracted human anterior teeth with straight canals were divided into two groups of 20 and two control groups of 5. Canals were instrumented with GT and .04 Profile NiTi files until a size 35 advanced to working length. Samples were sectioned, the apical 6 mm of the canal was photographed (x20) and projected onto a 3 x 4 foot grid with squares measuring 0.5 inches each. Total debris

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Tinoco, Justine Monteiro Monnerat. "Avaliação da extrusão bacteriana apical após instrumentação mecanizada com sistemas reciprocantes de instrumento único comparados a um sistema rotatório multi-instrumento." Universidade do Estado do Rio de Janeiro, 2013. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=6812.

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Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro<br>O objetivo deste estudo foi avaliar ex vivo a extrusão bacteriana apical após instrumentação mecanizada com sistemas reciprocantes de instrumento único e movimento reciprocante (WaveOne and Reciproc) comparados a um sistema multi-instrumentos (BioRaCe). Quarenta e cinco incisivos inferiores humanos unirradiculares, ovais e de anatomia semelhante foram utilizados. Os dentes foram acessados e seus canais radiculares foram contaminados com uma suspensão de Enterococcus faecalis e incubados por 30 dias possibilitando crescimento bacteria

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9

Lloyd, Matthew Warren. "A Comparison of Flexural Fracture of Three Different Nickel-Titanium Rotary File Systems." VCU Scholars Compass, 2007. http://scholarscompass.vcu.edu/etd/708.

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The purpose of this study was to compare the number of rotations to failure of three different rotary file systems. ProFile, Sequence, and Liberator files in sizes 25 and 40 with 0.04 taper were divided into groups of five and rotated against a grooved metal block mounted to a Universal testing machine at 31 and 34 degrees. Each file was rotated at 300 rpm until fracture occurred. The number of rotations to fracture were calculated. Use of a three-way ANOVA and Tukey's HSD multiple comparison tests revealed significant differences for the angle of deflection, size, and type of file. An in

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Schroeder, Stephen N. "THE INCIDENCE OF ROOT DENTINAL MICRO-CRACKS CAUSED BY RECIPROCATING AND CONTINUOUS ROTARY INSTRUMENTATION." VCU Scholars Compass, 2016. http://scholarscompass.vcu.edu/etd/4587.

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The aim of this study was to compare the incidence of root canal dentinal micro-cracks after canal instrumentation using reciprocating files (WaveOne Gold® and Twisted Adaptive®) and continuous rotation files (Edge Evolve® and EndoSequence®) in an ex-vivo benchtop study. This project used a novel methodology of finding dentinal defects using the “K-cube”, which allows evaluators to visualize sectioned root surfaces before instrumentation and after instrumentation. Mesial roots from 40 human mandibular first molars were divided into 4 groups of 10 for each file type. Root section pictures were

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11

Bang-Schaefer, Katrina H. "The Effect of Sodium Hypochlorite on Nickel Titanium Rotary Instruments and its Effect on Resistance to Fracture." VCU Scholars Compass, 2006. http://scholarscompass.vcu.edu/etd_retro/75.

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The purpose of this study was to examine the effect of immersion in sodium hypochlorite on nickel titanium rotary files and determine whether resistance to fracture was influenced by the immersion time. 70 ISO size 25 0.04 taper nickel titanium K3 and Profile rotary instruments were immersed in 5.25% sodium hypochlorite for 1, 5, 15, 30, 60, and 120 minutes (n=5 each). Resistance to fracture was tested by rotating files at a 30 degree angle at 350 rpm in a universal testing machine. Time to fracture was recorded and analyzed by a two-way ANOVA. Within both file types, there was a decreased

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12

Kitchens, George Gray Jr. "The Effect of Operational Speed on the Fracture of Nickel Titanium Rotary Instruments." VCU Scholars Compass, 2006. http://scholarscompass.vcu.edu/etd_retro/66.

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Numerous nickel titanium rotary file systems have been introduced in recent years. The recommended speed at which these files are to be operated varies widely between manufacturers. The purpose of this study was to test the number of rotations to fracture of NiTi rotary files when operated at different speeds and at different angles. Sixty size 25 Profile® nickel titanium rotary files were tested, thirty 0.04 and thirty 0.06 taper. Files were operated at speeds of 350 or 600 rpm and at angles of 25°, 28°, and 33.5°. The time to fracture was recorded and the numbers of rotations to fracture

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13

Wayment, Nathan. "COMPARING CYCLIC FATIGUE OF THE NEW GT® SERIES X(TM) FILES TO THE ENDO SEQUENCE™ ROTARY INSTRUMENTS." VCU Scholars Compass, 2009. http://scholarscompass.vcu.edu/etd/1684.

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The purpose of this study was to examine the number of rotations to failure of two different rotary file systems, EndoSquence Brassler USA (Savannah, GA) and GT(TM) series X(TM). Files sizes 20,30,40 with 0.04, 0.06 tapers of GT series X and Endo Sequence files size and taper used were 20, 30, 40 with 0.04 and 0.06 taper. Like tip and tapers were compared between systems. All files tested were 25mm in length. Files were allocated into 12 groups of 10 files each, and mounted to a universal testing machine. Each file was rotated at 300 rpms until fractured occurred. The number of rotations t

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14

Osmond, Steven. "Comparing Cyclic Fatigue of the new GT® Series XTM Files to the Original ProFile® GT® Rotary Instruments." VCU Scholars Compass, 2009. http://scholarscompass.vcu.edu/etd/1685.

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The purpose of this study was to test the number of rotations to fracture of the M-Wire GT® Series X(TM) rotary files compared to the original ProFile® GT® rotary files in a simulated curved canal. Eighty GT® Series X(TM) files of 25mm length were divided into eight groups of ten, one for each of the new GT® Series X(TM) files. Eighty original ProFile® GT® files of 25mm length were divided into eight groups of the same tip and taper sizes consistent with the GT® Series X(TM) file groups. Files were rotated at 300 rpm. While the angle may have slightly changed due to the flexure property of the

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15

Ankrum, Matthew Todd. "K3 Endo, Pro Taper, and Pro File Systems: Breakage and Distortion in Severely Curved Roots of Molars." VCU Scholars Compass, 2003. http://scholarscompass.vcu.edu/etd/842.

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K3 ENDO, PRO TAPER, AND PRO FILE SYSTEMS: BREAKAGE AND DISTORTION IN SEVERELY CURVED ROOTS OF MOLARS.By Matthew T. Ankrum, D.D.S.A Thesis submitted in partial fulfillment of the requirements for the degree of Master of Science at Virginia Commonwealth University.Virginia Commonwealth University, 2003Major Director: Gary R. Hartwell, D.D.S., M.S.Chairman and Professor, Department of EndodonticsIt was the aim of this study to investigate the incidence of file breakage and distortion when the Pro Taper, K3 Endo and ProFile systems were used to instrument canals in the severely curved roots of e

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Reynolds, Jake. "COMPARATIVE ANALYSIS OF TORSIONAL STRENGTH BETWEEN PROFILE® GT® AND GT® SERIES X(TM) NICKEL TITANIUM ROTARY INSTRUMENTS." VCU Scholars Compass, 2009. http://scholarscompass.vcu.edu/etd/1683.

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The purpose of this study was to compare the resistance to fracture by the twisting of two nickel titanium (NiTi) rotary file systems. The Profile® GT® (GT) and the GT® Series X(TM) (GTX) files were tested to analyze the maximum torsional strength and the maximum angular deflection at the time of separation of the files. For each system, ten new files were tested at each of the following eight taper/size designations for a total of 160 files: 20/0.04, 20/0.06, 30/0.04, 30/0.06, 30/0.08, 40/0.04, 40/0.06, and 40/0.08. The American National Standards Institute / American Dental Association Speci

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17

Grilo, Tiago José Monteiro Carreirinha. "Sistema de instrumentação mecanizada reciprocante: reciproc®." Master's thesis, [s.n.], 2014. http://hdl.handle.net/10284/4731.

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Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Medicina Dentária<br>Introdução Nos últimos anos, a Endodontia tem sofrido inúmeros avanços e melhorias clínicas que ajudaram a tornar o tratamento Endodôntico cada vez mais viável e eficaz. Uma das áreas onde se tem verificado maior investigação e consequente aparecimento e disponibilização de avanços tecnológicos é a instrumentação dos canais radiculares, tais como instrumentação mecanizada com movimentos reciprocantes e sistemas de lima única. Propom

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18

Reis, Paulo Roberto Baptista. "Avaliação in vitro da capacidade de corte e deformação de limas rotatórias de níquel-titânio." Universidade de Taubaté, 2009. http://www.bdtd.unitau.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=447.

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Objetivo: A busca incessante de melhorar o preparo do canal radicular faz com que novos instrumentos sejam projetados. Porém, diversos fatores como ângulo de corte, secção transversal, conformação da ponta e conicidade influenciam NBA fratura desses instrumentos. Sendo assim, o propósito da presente investigação foi avaliar in vitro a capacidade de corte e deformação de lima rotatória F2 do sistema ProTaper Universal e da lima 25/06 do sistema EndoSequence, ambas de níqueltitânio em função do número de usos. Método: Para realização deste estudo foi utilizada uma amostra não aleatória por conve

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19

Esteves, Cristiane Linge Exposito. ""Influência da técnica de desobturação e do limite de obturação na extrusão apical"." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/23/23135/tde-21012005-102925/.

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O controle da extrusão apical durante a reintervenção endodôntica é essencial para o sucesso do novo tratamento. Nesse contexto, o presente estudo teve como objetivo comparar a quantidade de material sólido extruído na desobturação de canais radiculares variando-se a técnica de esvaziamento e o limite de obturação. Foram utilizados 40 incisivos inferiores previamente tratados divididos em dois grupos de acordo com o limite de obturação estabelecido. Cada grupo foi subdividido em dois subgrupos levando-se em conta a técnica de desobturação empregada; manual (subgrupos A1 e B1) e mecânico-rotató

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20

Elemam, Ranya. "Methods used to evaluate shaping ability of rotary endodontic files : state of the art." Master's thesis, 2021. http://hdl.handle.net/10400.26/38433.

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Dissertação para obtenção do grau de Mestre no Instituto Universitário Egas Moniz<br>The aim of this project is to review and analyze the literature that studied the shaping ability of endodontic rotary files to answer the question: What is the most accurate method used to assess the shaping ability of rotary endodontic files based on the canal transportation and centering ability parameters? Search was performed using PubMed, MEDLINE, Embase, ScienceDirect, Scopus, e B-on databases. Studies published in English from January 2010 to February 2021, that specified centering ability and shaping

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21

Caetano, Diogo Alexandre Santos. "Corrosion resistance of diamond-like carbon coated rotary endodontic instruments - pilot study." Master's thesis, 2018. http://hdl.handle.net/10316/81789.

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Trabalho Final do Mestrado Integrado em Medicina Dentária apresentado à Faculdade de Medicina<br>Objetivo: Este estudo pretende avaliar se um revestimento de diamond-like carbon em limas endodônticas mecanizadas de Níquel-Titânio (Hyflex CM, Hyflex EDM and Reciproc Blue) tem um efeito protetor da superfície contra corrosão por contacto com hipoclorito de sódio (NaOCl).Materiais e métodos: Um total de 12 limas foram divididas em 6 grupos: 2 limas Hyflex CM, 2 Hyflex EDM, 2 Reciproc Blue, 2 Hyflex CM com revestimento DLC, 2 Hyflex EDM com revestimento DLC e 2 Reciproc Blue com revestimento DLC.

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22

Alnowailaty, Yousef. "Influence of surface coatings on cutting efficiency and cyclic fatigue of nickel-titanium rotary endodontic files in artificial canals." Thesis, 2017. https://hdl.handle.net/2144/26218.

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Since the endodontic files were introduced in the late 1980s, NiTi showed enhanced performance in root canal instrumentation when compared to stainless steel files. It was reported that NiTi files had a higher tendency to break inside root canals compared to stainless steel files. The aim of this research was to evaluate the cutting efficiency and the cyclic fatigue of Protaper® endodontic files and EndoSequence® endodontic files when their surface character was modified through coating the files with two types of silanes, as “dry” lubricants. The first coating was Octadecylsilane and the seco

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23

Pinto, Diogo Filipe Cardoso. "Economia na consulta de Endodontia." Master's thesis, 2016. http://hdl.handle.net/10284/5607.

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Introdução: Em Portugal a realidade actual, clínica e financeira do exercício da Medicina Dentária é bem distinta da do final do séc. XX devido à pletora de Médicos Dentistas e à baixa de honorários por acto Médico registada nos últimos anos. Objectivos: Este trabalho teve como objectivo perceber um pouco sobre os detalhes a ter em consideração aquando da abertura de uma clínica centrada na realização de tratamentos na área da Endodontia, e como publicitá-la de forma legal e apelativa. Pretende-se depois também estimar o custo mínimo para a realização de tratamentos Endodonticos com diferente

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24

Fraga, Pedro Davide Xavier. "Glide Path em endodontia: técnica mecanizada versus técnica manual – revisão narrativa." Master's thesis, 2021. http://hdl.handle.net/10284/10953.

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OBJETIVO: Avaliar a importância da realização do Glide Path para o sucesso do tratamento endodôntico e comparar a técnica manual com a técnica mecanizada. Além disso, dar a conhecer alguns sistemas de instrumentação disponíveis no mercado para a realização do mesmo. METODOLOGIA: Pesquisa bibliográfica de artigos publicados nas bases de dados: PubMed e B-On. Foram definidos termos de pesquisa, critérios de inclusão e exclusão para a seleção dos artigos. No total foram incluídos 28 artigos para a realização desta revisão. PRINCIPAL TÓPICO ABORDADO: Estima-se que a taxa de sucesso do tratamento

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Assis, Dinis Sabugueiro de. "Eficácia dos instrumentos rotatórios e reciprocantes na redução microbiana: revisão narrativa." Master's thesis, 2021. http://hdl.handle.net/10284/10533.

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O objetivo da presente revisão narrativa foi efetuar uma pesquisa da literatura existente relacionada com a eficácia dos instrumentos rotatórios contínuos e reciprocantes na redução microbiana e a comparação destes, como também as características dos sistemas, que possam conferir uma melhor eficácia. O motor de busca utilizado foi a PubMed, sendo que os artigos publicados antes de 2015 e que não estivessem em português ou inglês foram excluídos. Foi encontrado uma falta de consenso nos resultados quanto à comparação direta da eficácia dos instrumentos, provavelmente devido à falta de uma meto

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